AI Visibility Index: Tanks & Pressure Vessels in Minnesota

When a buyer asks an AI assistant for a tanks & pressure vessels supplier in Minnesota, these are the companies that get named. This is what we found when the cell was last measured.

71 companies tracked
Last measured September 30, 2026
Next measurement October 30, 2026

Look up your company Get your monthly report

The headline numbers

Never named by AI

62 of 71

companies never appeared in a single buying question

They were asked the same 5 buying questions as everyone else in this cell and were not named once.

9 named at least once
62 never named

Not sure whether you are one of them?Check your domain

Cell average: 0.82of 15
Across all 71 tracked companies.
Top ten average: 7.1of 15
The ten most visible companies in the cell.

A company's score is how many of the 15 measured answers named it.

The top ten in Minnesota

These are the companies AI assistants named most often when Minnesota buyers went looking for a supplier in this category.

Top 10 most AI-visible Tanks & Pressure Vessels companies in Minnesota, measured September 30, 2026
Rank	Company	Location	AI visibility
1	Arrow Tank & Engineering Co 30 employeesCambridge, Minnesota	Cambridge, Minnesota	14 of 15 answers
2	Midwest Tank Co 15 employeesBig Lake, Minnesota 2 name variants Midwest Tank Companymost common10 Midwest Tank Co.4	Big Lake, Minnesota	14 of 15 answers
3	NorMinn Industrial, LLC Minnesota 2 name variants NorMinn Industrial, LLCmost common10 NorMinn Industrial2	Minnesota	12 of 15 answers
4	DCI Inc 200 employeesSt Cloud, Minnesota	St Cloud, Minnesota	10 of 15 answers
5	Seitz Stainless Inc 25 employeesAvon, Minnesota 2 name variants Seitz Stainlessmost common8 Seitz Stainless – Avon facility1	Avon, Minnesota	8 of 15 answers
6	Brown Tank LLC 60 employeesOakdale, Minnesota	Oakdale, Minnesota	3 of 15 answers
7	Judson Tank Company 6 employeesMankato, Minnesota	Mankato, Minnesota	3 of 15 answers
8	Par Piping & Fabrication Llc 40 employeesGranite Falls, Minnesota 2 name variants Par Piping & Fabricationmost common2 Par Piping & Fabrication, LLC1	Granite Falls, Minnesota	3 of 15 answers
9	Millerbernd Manufacturing Company 170 employeesWinsted, Minnesota	Winsted, Minnesota	2 of 15 answers
10	Anderson Dahlen Inc. Minnesota	Minnesota	2 of 15 answers

4 more companies were named at least once. Companies outside the top ten are counted in the averages but not named here.

Also named, based in another state

AI assistants named these companies too, but MacRAE'S lists them in a different state, not Minnesota. They belong to that state's ranking, not this one.

Company	State	Mentions
Central Fabricators, Inc.	Ohio	2 of 15
Chart Industries – New Prague facility	Louisiana	1 of 15
Gilbert Industries	Arkansas	1 of 15
Universal Stainless, Inc.	Pennsylvania	1 of 15
Wheeler Tank Manufacturing	South Dakota	1 of 15

One of these yours?

A complete Blue Book listing is one of the sources assistants read in this category. Confirming your details is free.

Get your monthly report

The five questions we asked

Every company in this cell is measured on the same questions, written the way a buyer would type them. That is what makes the ranking a comparison rather than a collection of anecdotes.

1“Best suppliers of tanks and pressure vessels in Minnesota”
2“Who supplies ASME-certified stainless steel process pressure vessels in Minnesota”
3“I need a Minnesota tank and pressure vessel partner for a custom chemical processing line, who should I talk to”
4“Top tanks and pressure vessels suppliers in Minnesota for chemical plant engineering buyers”
5“Which Minnesota tank and pressure vessel fabricators can handle large-diameter, high-pressure reactor vessels”
6“List 20 tanks and pressure vessels companies in Minnesota with their specialties.”the roster question

Each question is asked more than once, which is why a company's score is out of 15 answers rather than out of the number of questions.

Where AI drew its answers from

These are the sources the answers in this cell leaned on most, ranked by how many of the named companies each one stands behind.

midwesttankco.com
2 companies
seitzstainless.com
2 companies
files.chartindustries.com
2 companies
norminn.com
2 companies
parpipingfab.com
2 companies
dciinc.com
1 company
arrowtank.com
1 company
sst-pv.com
1 company
andersondahlen.com
1 company
browntank-mn.com
1 company
centralfabricators.com
1 company
fhcmfg.com
1 company

26 sources were cited across this cell's answers from 19 domains. A directory page often stands behind several companies at once; a company's own site usually stands behind one.

Minnesota in context

Minnesota ranks 7th of 17 measured states in this category. Each bar is the share of that state's tracked companies that AI assistants named at least once; across every measured state in this category the share is 10%.

Minnesota (this report)Other measured statesCategory average (10%)

Look up a company

Enter a domain or a company name to see whether it is tracked in this cell, and whether the answers named it. This is a lookup against a measurement already taken, so it is instant.

Try arrowtank.com or any other domain

The public Index publishes one measurement per cell. A monthly report covers your own company:

Every question it was named on
Every question it was not
What moved

Your own position is only ever shown to you.